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Effect Of Nose Bluntness And Controlled Roughness On The Flow On Two Hypersonic Inlet Center Bodies Without Cowling At Mach 598
Download Effect Of Nose Bluntness And Controlled Roughness On The Flow On Two Hypersonic Inlet Center Bodies Without Cowling At Mach 598 full books in PDF, epub, and Kindle. Read online Effect Of Nose Bluntness And Controlled Roughness On The Flow On Two Hypersonic Inlet Center Bodies Without Cowling At Mach 598 ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Effect of Nose Bluntness and Controlled Roughness on the Flow on Two Hypersonic Inlet Center Bodies Without Cowling at Mach 5.98 by : James M. Cubbage
Download or read book Effect of Nose Bluntness and Controlled Roughness on the Flow on Two Hypersonic Inlet Center Bodies Without Cowling at Mach 5.98 written by James M. Cubbage and published by . This book was released on 1965 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Unit Reynolds Number, Nose Bluntness, and Roughness on Boundary Layer Transition by : J. Leith Potter
Download or read book Effects of Unit Reynolds Number, Nose Bluntness, and Roughness on Boundary Layer Transition written by J. Leith Potter and published by . This book was released on 1960 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Condtions encountered in the high Mach number flow regime are show to profoundly affect the longitudinal extent of the boundary layer from beginning to end of transition, the distribution of fluctuation energy in the laminar layer, and effectiveness of surface roughness in promoting transition. A critical layer of intense local energy fluctuations was found at all Mach numbers studied. The existence of such a critical layer is predicted by stability theory. Hot-wire surveys of the laminar, transitional, and turbulent boundary layers are presented to illustrate the critical layer in laminar flow and subsequent development into the transition process. The relation between boundary layer transition on flat plates and cones in supersonic flow is explored and a process for correcting data to account for leading edge bluntness is devised. On the basis of a comparison of data corrected for the effects of leading edge geometry, it is shown that the Reynolds umber of transition on a cone is three times that on a vanishingly thin flate plate. Close agreement between data from various wind tunnels is demonstrated. Study of the effect of finite leading edges yields significant illustrations of the influence of unit Reynolds number on boundary layer transition. A correlation of the effects of surface roughness on transition is achieved. This treatment includes two- and three-dimensional roughness in both subsonic and supersonic streams. At this time only zero pressure gradients have been studied. The entire range of movement of transition from its position with no roughness up to its reaching the roughness element is describable by the procedure give. Examples of application of the correlation results show excellent agreement with experimental data from a variety of sources. Implications concerning tripping hypersonic boundary layers are discussed.
Book Synopsis Effect of Unit Reynolds Number, Nose Bluntness, Angle of Attack, and Roughness on Transition on a 5° Half-angle Cone at Mach 8 by : P. Calvin Stainback
Download or read book Effect of Unit Reynolds Number, Nose Bluntness, Angle of Attack, and Roughness on Transition on a 5° Half-angle Cone at Mach 8 written by P. Calvin Stainback and published by . This book was released on 1969 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Several NACA 1-series Nose Inlets with and Without Protruding Central Bodies at High-subsonic Mach Numbers and at a Mach Number of 1.2 by : Robert E. Pendley
Download or read book An Investigation of Several NACA 1-series Nose Inlets with and Without Protruding Central Bodies at High-subsonic Mach Numbers and at a Mach Number of 1.2 written by Robert E. Pendley and published by . This book was released on 1950 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of three NACA 1-series nose inlets, two of which were fitted with protruded central bodies, was conducted in the Langley 8-foot high-speed tunnel. An elliptical-nose body, which had a critical Mach number approximately equal to that of one of the nose inlets, was also tested. Tests were made near zero angle of attack for a Mach number range from 0.4 to 0.925 and for the supersonic Mach number of 1.2. The inlet-velocity-ratio range extended from zero to a maximum value of 1.34. Measurements included pressure distribution, external drag, and total-pressure loss of the internal flow near the inlet. Drag was not measured for the tests at the supersonic Mach number.
Book Synopsis Effect of Nose Bluntness Intake Features on Hypersonic Inlet Flow Field by : V. B. Jaware
Download or read book Effect of Nose Bluntness Intake Features on Hypersonic Inlet Flow Field written by V. B. Jaware and published by . This book was released on 2023-02-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of nose bluntness intake features on hypersonic inlet flow field is an important area of research for the design and optimization of hypersonic aircraft. Hypersonic aircraft operate at extremely high speeds, and the design of the intake features can have a significant impact on the performance of the aircraft. The nose bluntness of the intake features can affect the flow field characteristics, which can in turn impact the performance of the engine and the aircraft as a whole. The research on the effect of nose bluntness intake features on hypersonic inlet flow field involves the use of computational fluid dynamics (CFD) simulations to study the flow characteristics of the inlet features. The simulations take into account the geometry and the operational conditions of the inlet features to evaluate their performance. The results of the simulations can be used to optimize the design of the inlet features and improve the performance of the aircraft. The effect of nose bluntness intake features on hypersonic inlet flow field is an important area of research that has significant implications for the design of hypersonic aircraft. By understanding the flow characteristics of the inlet features, researchers can optimize the design to improve the performance of the aircraft. This can lead to increased efficiency, reduced fuel consumption, and improved safety, which are all important considerations in the design of hypersonic aircraft.
Book Synopsis Analytic Study of Induced Pressure on Long Bodies of Revolution with Varying Nose Bluntness at Hypersonic Speeds by : Vernon Van Hise
Download or read book Analytic Study of Induced Pressure on Long Bodies of Revolution with Varying Nose Bluntness at Hypersonic Speeds written by Vernon Van Hise and published by . This book was released on 1960 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic study of induced pressures on a series of bodies of revolution with varying nose bluntness has been made by using the method of characteristics for a perfect gas. The fluid mediums investigated were air and helium and the Mach number range was from 5 to 40. A study of representative shock shapes was also made. Flow parameters obtained from the blast-wave analogy gave good correlations of induced pressures and shock shapes. The induced-pressure correlations yielded empirical equations for air and helium which cover the complete range of nose bluntness considered. (Nose fineness ratios varied from 0.4 to 4.) Available experimental results were in good agreement with the characteristics solutions. Properties connected with the concept of hypersonic similitude enabled correlations of the calculations to be made with respect to nose shape, Mach number, and ratio of specific heats.
Book Synopsis Experimental Investigation of a Large-scale, Two-dimensional, Mixed-compression Inlet System by : Norman D. Wong
Download or read book Experimental Investigation of a Large-scale, Two-dimensional, Mixed-compression Inlet System written by Norman D. Wong and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large-scale, variable-geometry inlet model with a design Mach number of 3.0 was tested at Mach numbers from 1.55 to 3.2. Variable features of the inlet for off-design operation are an adjustable-height ramp system and a translating cowl. This report presents experimental results for a diffuser and boundary-layer bleed configuration which was optimized at the design Mach number. Overall performance was high with throat-mounted vortex generators, which were effective in reducing flow distortion in the subsonic diffuser at the higher Mach numbers.
Book Synopsis Effects of Nose Bluntness, Fineness Ratio, Cone Angle, and Model Base on the Static Aerodynamic Characteristics of Blunt Bodies at Mach Numbers of 1.57, 1.80, and 2.16 and Angles of Attack Up to 180 ̊ by : David S. Shaw
Download or read book Effects of Nose Bluntness, Fineness Ratio, Cone Angle, and Model Base on the Static Aerodynamic Characteristics of Blunt Bodies at Mach Numbers of 1.57, 1.80, and 2.16 and Angles of Attack Up to 180 ̊ written by David S. Shaw and published by . This book was released on 1963 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Force and Pressure Characteristics for a Series of Nose Inlets at Mach Numbers from 1.59 to 1.99 by : L. J. Obery
Download or read book Force and Pressure Characteristics for a Series of Nose Inlets at Mach Numbers from 1.59 to 1.99 written by L. J. Obery and published by . This book was released on 1951 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation to determine the external and internal flow characteristics of a typical ram-jet-inlet configuration of an external-compression type utilizing an isentropic spike and a subsonic diffuser was conducted in the NACA Lewis 8- by 6-foot supersonic wind tunnel. The model was investigated of a range of mass-flow ratios at angles of attack up to 10 degrees, free-stream Mach numbers of 1.59, 1.79, and 1.99, and a Reynolds number of approximately 2,400,000 based on inlet diameter.
Book Synopsis A Study of Flow Fields about Some Typical Blunt-nosed Slender Bodies by : Roberto Vaglio-Laurin
Download or read book A Study of Flow Fields about Some Typical Blunt-nosed Slender Bodies written by Roberto Vaglio-Laurin and published by . This book was released on 1960 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Centerbody Boundary-layer Removal Near the Throat of Three Conical Nose Inlets at Mach 1.6 to 2.0 by : Emil J. Kremzier
Download or read book Effect of Centerbody Boundary-layer Removal Near the Throat of Three Conical Nose Inlets at Mach 1.6 to 2.0 written by Emil J. Kremzier and published by . This book was released on 1955 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Bluntness on Hypersonic Two-dimensional Inlet Type Flows by : Robert J. Sanator
Download or read book Effect of Bluntness on Hypersonic Two-dimensional Inlet Type Flows written by Robert J. Sanator and published by . This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reynolds Number Effects on the Induced Pressures of Cylindrical Bodies with Different Nose Shapes and Nose Drag Coefficients in Helium at a Mach Number of 24 by : Richard D. Wagner (Jr.)
Download or read book Reynolds Number Effects on the Induced Pressures of Cylindrical Bodies with Different Nose Shapes and Nose Drag Coefficients in Helium at a Mach Number of 24 written by Richard D. Wagner (Jr.) and published by . This book was released on 1963 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exact inviscid pressure distributions and shock shapes, obtained by the method of characteristics, are compared with experimental data. The results indicate a strong dependence of induced pressures upon Reynolds number, especially in the region immediately downstream of the nose-cylinder junction. The measured shock shapes revealed no discernible effect of Reynolds number variations.
Book Synopsis Investigation of Fixed-geometry Supersonic Inlets with Bypass Ducts for Matching Turbojet-engine Air-flow Requirements Over a Range of Transonic and Supersonic Speeds by : Abraham Leiss
Download or read book Investigation of Fixed-geometry Supersonic Inlets with Bypass Ducts for Matching Turbojet-engine Air-flow Requirements Over a Range of Transonic and Supersonic Speeds written by Abraham Leiss and published by . This book was released on 1958 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method is presented to design a supersonic inlet that will match turbojet-engine air mass-flow requirements over a wide Mach number range. Two types of bypasses were investigated; one had a 360 degree annular cowling and the other had twin slotted ducts. Three models were flight tested. Two of the models, which had bypass ducts, were also ground tested. The bypass models had higher external drags. Both bypass models approximated a typical turbojet-engine air mass-flow requirement between Mach numbers 1.0 and 2.0. The flight tests covered a Reynolds number range from 200,000 to 800,000 and a Mach number range from 0.8 to 1.95.
Book Synopsis Boundary Layer Transition at Supersonic Speeds by : E. R. Van Driest
Download or read book Boundary Layer Transition at Supersonic Speeds written by E. R. Van Driest and published by . This book was released on 1961 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments carried out in the 12-inch supersonic wind tunnel to investigate the effect of three dimensional roughness elements (spheres) on boundary-layer transition on a 10-degree (apex angle) cone without heat transfer are described. The local Mach number for these tests was 2.71. The data show clearly that the minimum (effective) size of trip required to bring transition to its lowest Reynolds number varies power of the distance from the apex of the cone to the trip. Use of available data at other Mach numbers indicates that the Mach number influence for effective tripping is taken into account by a simple expression. Some remarks concerning the roughness variation for transition on a blunt body are made. Finally, a general criterion is introduced which gives insight to the transition phenomenon and anticipates effects of external and internal disturbances, Mach number transfer.
Book Synopsis An Investigation of Several NACA 1-series Nose Inlets with and Without Protruding Central Bodies at High-subsonic Mach Numbers and at a Mach Number of 1.2 by : Robert E. Pendley
Download or read book An Investigation of Several NACA 1-series Nose Inlets with and Without Protruding Central Bodies at High-subsonic Mach Numbers and at a Mach Number of 1.2 written by Robert E. Pendley and published by . This book was released on 1955 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation of three NACA 1-series nose inlets, two of which were fitted with protruded central bodies, was conducted in the Langley 8-foot high-speed tunnel. An elliptical-nose body, which had a critical Mach number approximately equal to that of one of the nose inlets, was also tested. Tests were made near zero angle of attack for a Mach number range from 0.4 to 0.925 and for the supersonic Mach number of 1.2. The inlet-velocity-ratio range extended from zero to a maximum value of 1.34. Measurements included pressure distribution, external drag, and total-pressure loss of the internal flow near the inlet. Drag was not measured for the tests at the supersonic Mach number.
Book Synopsis Turbojet-ramjet Propulsion System for All-body Hypersonic Aircraft by : Mark H. Waters
Download or read book Turbojet-ramjet Propulsion System for All-body Hypersonic Aircraft written by Mark H. Waters and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characteristics of a parallel, ovcr-and-under. turbojet-ramjet propulsion system installed on an all-body Mach number 6 hypersonic aircraft are estimated, and the effect of variations in propulsion system parameters on payload and on problems of installation are determined. Engine thrust and fuel flow requirements are evaluated throughout acceleration and cruise, and the effects on the weights and dimensions of the propulsion system, including both inlets and engines, are determined. A wraparound turboramjet is also evaluated and comparisons with the parallel turbojet-ramjet system are made.
